US 12,248,227 B2
Method for driving optical element
Takayuki Imai, Tokyo (JP); Kojiro Ikeda, Tokyo (JP); and Takeo Koito, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Feb. 12, 2024, as Appl. No. 18/439,314.
Application 18/439,314 is a continuation of application No. PCT/JP2022/028427, filed on Jul. 22, 2022.
Claims priority of application No. 2021-144295 (JP), filed on Sep. 3, 2021.
Prior Publication US 2024/0192570 A1, Jun. 13, 2024
Int. Cl. G02F 1/29 (2006.01)
CPC G02F 1/29 (2013.01) [G02F 2203/07 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for driving an optical element comprising a first liquid crystal cell including a first substrate on which a first transparent electrode and a second transparent electrode are alternately arranged in a first direction, a first alignment film having an alignment direction in the first direction and covering the first transparent electrode and the second transparent electrode, a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately arranged in a second direction orthogonal to the first direction, a second alignment film having an alignment direction in the second direction and covering the third transparent electrode and the fourth transparent electrode, and a first liquid crystal layer between the first substrate and the second substrate, comprising the steps of:
inputting a first signal to the first transparent electrode;
inputting a second signal having a phase difference of x with respect to the first signal to the second transparent electrode;
inputting a third signal having a phase difference of a with respect to the first signal to the third transparent electrode; and
inputting a fourth signal having a phase difference of x with respect to the third signal to the fourth transparent electrode.